Frank kummer



(N0 Model.)

P. K UM MBB. TRIGYGLE N0. 598,322. Patented Feb. l, 1898.

W itnesses.

Inventor.

ample, by rods C C rrnn TATES FRANK KUMMER, OF OINCINNATI, OIIIO.

TRICYCLE.

SPEGIFIGATION forming part of Letters Patent N0. 598,322, dated February 189 Application filed August 189 T0 aZZ wh0m z't may concern:

y Be it known that I, FRANK KUMMER, a eitizen of the United States, and a resident of the city of Oineinnati, in the county of Hamilton and State of Ohio, have invehted 0ertain new and useful Improvements in Trieycles, of which the following is a speeification.

The several features of 1ny invention and the various advantages resulting from their u'se, eonjointly 01' otherwise, Will be apparent fro1n the following desoription and elairns.

In the accompanying draw:ings, making a part of this specification and in whieh Si1nilar letters of referenee indicate eorresponding parts, Figure 1 is a top view of a tricycle embodying my invention. Fig. 2 is a side elevation thereof. Fig. 3 isa 1*ear elevation of. the san1e.

A indieates one, and A the other, of the forward wheels. These wheels are abreast.

B indieates the rear Wheel, preferably loeated in the longitudinal middle of the maehine.

O indioates a supporting-frame, substantially rigid and connecting the forward wheels and the rear wheel. This frarne preferably eonsists 0f two parallel side pieces C C a curved rear portion O and a f1ont connecting rod or brace O, oonneeting the front ende of the pieees 0 C together. When desired, the pieces 0 C and the rear part C may be connected bybraees other than O as, for ex- (Indieated in dotted lines in Fig. l.) In such ease the front (3011- neoting-brace 0 may be omitted. The latter construction affords more room in front and in the neighborhood of the forward wheels.

Eaoh of the wheels is pivotally oonnected .to the frame, so thatits 'axle Can turn independently of the turning of the fran1e. T0 this end eaeh Wheel has its 0Wn bifuroated pieee D. The lower 01 free ends of the fork are duly eonneeted to the axle E of the wheel. The upper end of the piece D passes up through an eye or journal-bearing F of the frame O, and the fra1ne is prevented from jumping or slipping off the pieee D by means of a suitable detent G In the present illustrative instanee this detent is a nut serewed onto the screw-threaded end of the piece D above the frame. The motor-power, a's in the illustrative dev1ce, is preferably attaohedand s5m1m. 602,222. (N0 model.)

eonstrueted as shown.vizz Each of-the forward wheels is turned by orank H and pedal H The oranks Hof the adjacent wheel are fixed to the hub of the Wheel and Will loe held in plaee by a nut H or other suitable wellknown device. In Order to afford the fnllest opportunity for the communication of force to the trioyele, each of the forward Wheels is provided with two of these eranks H, one on each side of the wheel.

As this trieycle is primarily designed for two riders riding simultaneously I provide a seat I over or in the vieinity of eaeh forward wheel, and this seat is supported from and by the frame. In the present illustrative instance the seat is supported on a seat-iron 1 seeured to the frame.

Eaeh'forward wheel ean be turned (fotated on the axis o1": its forked pieoe) loy means of the handle J, attached thereto by an arm J I have provided a novel and exeeedingly advantageous devioe whereby this trieycle ean be turned in an exeeedingly short area, and this oonstruction is as follows: From the shank of the piece D a lever. K extends rearward. This lever is rigidly conneoted t0 piece D. A oonnecting-rodL is present,and one end of it is connected to the free end of lever K, and the other end of it is pivotallyconneeted at L to the free end of a lever M. The other end of this lever M is eonneeted to the shankof pieee D of the rear wheel. The relative proportionate lengths of these leverage conneetions are in my most preferred annstruotion as follows: When the parts 0f the maehine are relatively placed, as in Fig. l, from a line drawn in theory aeross the maehine through the shank of either of the pieees D of the forvvard wheels, 011 the one band, to a oross-line passing from the pivot at L parallel to the first-named horizontal line the distance is as twelve, and the distance from the pivot L 110 the shank of pieee D of the rear wheel :is as six. This proportion between the l evers eauses the rear wheel to malte a three-quarter turn when the forward wheel makes a half-turn, and all turns in the like proportion. Both of the shanks D 0f the forward wheels are likewise provided With the lever K and its attendant rod L, pivoted to the lever M, as deseribed and as Sh own. Such aeonstruction enables the rider or riders to turn the trieyele With great ease and in an extraordinarily small compass. The proportion of the levers may be somewhat varied f101n the above seale, though the latter is a preferred one. The arm J of handle J is preferably bent forwardsubstantially as shovvn, and the handle located in farther forward than the shank D that the rider may have more roorn for bis body and f01 the use of bis arrns in handling the maehine.

TW0 riders Will usually be present, eaeh occupying one of the seats I.

Any turn of the handle of one forward wheel operates t0 turn the handle of the other forward wheel, as both freut wheels tu1n simultaneously and continue always parallel, the rear wheel turning its proportionate and increased a'mount, as heretofore indieared.

The entire construction and arrangement is not only novel and attraetive, but exceedingly advantageous and eonvenient. The pleasure it affords in providing for two persons riding side by side is a marked and desirable one.

1 As a means f01 limiting the movement of the leverM and With it the rods L- in their movennent to the right 01 left the rode L may be provided With a stop N, whieh, 0n corning into eontaet With an adjaeent portion of the frame, will limit the farther movementof the lever M in that direetion.

VVhat I claim as new and of rny invention, and desire to seeure by Letters Patent, is-

1. A tricyele, whose three wheels are all pivotally connected 130 the frame, and intereonnected by the levers K, one fron1 eaeh shank D of said Wheels A, A and a lever from the single wheel B, and the link-rods, pivotally conneeting the latter t0 the respective free ends 0f the levers K, substantially as and for the purposes speeified.

, extending toward the axial plane 0f the single wheel, the conneeting-rods being pivotally eomieeted to the free end of the firstnarned lever M and respeetively 130 the free ends of the long levers, the long levers L bearin g the proportion in length to the short lever M 0f two to one, substantially as and for the purposes specified.

3. In a tricyele, the eombination 0f the frame having the sides O and therear portion O and the forward wheels pivoted by shank D to the frarne, and each provided with eranks and pedals, and With operating-handle, and eaeh having the long lever L fixed to its adjaeent shank D, and the rear wheel pivoted to the rear portion 0 and the short oted by shank D to the frarne, and eaeh provided with eranks and pedals, and with operating-handle, and each having the long lever L fixed 130 its adjacent shank D, and the rear wheel pivoted t0 the curved rearpo1tion C and the short lever M extending forward, and fixed at its rear end 110 the pivot-shank portion of the rear wheel, and the conneet- 1ng-rods L, one conneeting the free end of one long lever t-o the free end 0f the sho1t lever M, and the other rod L connecting the other long lever likewise to the short lever M, substantially as and for the pu1poses speeified.

5. In a trieycle, the cornbination 0f the fra1ne having the sides C and the rear portion C and the forward wheels pivoted by shank D t0 the frame, and eaeh provided With eranks and pedals and with operating-handle, and eaeh having the long 1ever L fixed to its adjaeent shank D, and the rea1 Wheel pivoted to the rea1 portion C and the short lever M extending forward and fixed at its rear end t0 the pivot-shank portion of the rear wheel, and the eonnecting-rocls L, one eonneetingthe free end of one long lever to the free end of the short lever M, and the other rod L, counecting the other long lever likewise to the short lever M, and the stops f01 preventing the lever M fron1 turning to0 far t0 the right o1 left, substantially as and f01 the purposes speeified.

6. In a tricycle, the eombination 0f the frarne having the sides C and the rear portion C and the forwai*d wheels pivoted by shank D to the frame, and each provided With eranks and pedals and with operating-handle, and eaeh having the long lever L fixed to its adjaceflt shank D, and the rear wheel pivoted t0 the rear portion O and the short lever M extending forward, and fixed at its rear end 130 the pivot-shank portion of the rear wheel, and the eonneeting-rods L, one connecting the free end 0f one long lever to the free end of the sho1t lever M, and the other 10d L, couneeting the other long lever likewise t0 the short, lever M, and the stops N, respectively loeated on the rods 'L, substantially as and f01' the purposes specified.

FRANK KUMMER.

Attest:

' A. S. LUDLOW,

K. SMITH. 

